CCRL 40/40
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 795'341 games
played by 2'045 programs
110322 CPU days (X2 4600+)

White wins: 272'710 (34.3%)
Black wins: 201'857 (25.4%)
Draws: 320'774 (40.3%)
White score: 54.5%

Engine Details

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Critter 0.52b 32-bit in CCRL 40/40, 2018-02-17
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Tested by CCRL team, 2005-2018, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Critter 0.52b 32-bit has no rank with rating of 2773 Elo points (+30 -30),
based on 325 games: 87 wins, 81 losses and 157 draws
Score: 50.9%, Average opponent: −5.8, Draws: 48.3%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Stockfish 1.6.3 32-bit             2934   1.5-2.5   (+0 -1 =3 )    0.0  +101
 - Komodo 1.0 32-bit                  2867   7.0-15.0  (+3 -11=8 )    0.0   -23
 - Thinker 5.4d Inert 32-bit          2857   1.0-3.0   (+0 -2 =2 )    0.0   -58
 - Cyclone xTreme Fury                2828   2.0-2.0   (+0 -0 =4 )    0.1   +55
 - Onno 1.1.1 64-bit                  2811   2.0-5.0   (+0 -3 =4 )    2.3   -80
 - Spark 0.3a 32-bit                  2800  23.0-29.0  (+12-18=22)    5.9    -7
 - Spark 0.3 32-bit                   2798  14.0-16.0  (+6 -8 =16)    7.4    +5
 - Protector 1.3.2 32-bit             2798   3.0-3.0   (+0 -0 =6 )    9.2   +25
 - Fruit 2.3.1                        2785   8.5-9.5   (+3 -4 =11)   24.2     0
 - Bright 0.5c                        2779   9.0-13.0  (+4 -8 =10)   36.9   -51
 - Naraku 1.4                         2777   6.0-4.0   (+4 -2 =4 )   42.5   +62
 - Loop 13.6 (Loop 2007) 32-bit       2774   2.0-2.0   (+1 -1 =2 )   47.7    +1
 - Glaurung 2.2 32-bit                2755  11.5-6.5   (+8 -3 =7 )   82.8   +66
 - Ktulu 9                            2754   2.5-1.5   (+1 -0 =3 )   88.0   +48
 - SmarThink 1.20 32-bit              2748  11.5-10.5  (+6 -5 =11)   93.3    -8
 - Spike 1.2 Turin                    2746   7.5-3.5   (+5 -1 =5 )   95.7   +83
 - Junior 10                          2744   2.0-2.0   (+1 -1 =2 )   95.8   -39
 - Twisted Logic 20100131x 32-bit     2739   5.0-3.0   (+3 -1 =4 )   97.3   +39
 - Twisted Logic 20090922 32-bit      2730   5.0-2.0   (+5 -2 =0 )   99.1  +146
 - Bison 9.11 32-bit                  2728   3.0-4.0   (+2 -3 =2 )   99.6   -91
 - Chess Tiger 2007.1                 2704   3.0-1.0   (+2 -0 =2 )  100.0   +80
 - Chessmaster 11 Aiglos II           2701   3.0-1.0   (+2 -0 =2 )  100.0   +77
 - Crafty 23.2 32-bit                 2696   2.5-1.5   (+1 -0 =3 )  100.0   -17
 - Frenzee Feb08 32-bit               2695   7.0-4.0   (+4 -1 =6 )  100.0    -1
 - Booot 4.15.0                       2692   7.0-4.0   (+5 -2 =4 )  100.0    +5
 - Delfi 5.4                          2687   1.0-3.0   (+0 -2 =2 )  100.0  -235
 - Crafty 23.1 32-bit                 2684   0.0-1.0   (+0 -1 =0 )  100.0  -INF
 - Chessmaster 11 Leonidas            2681   3.5-0.5   (+3 -0 =1 )  100.0  +196
 - Chessmaster 11 Toxic               2677   2.5-1.5   (+2 -1 =1 )  100.0   -13
 - BugChess2 1.6.4 32-bit             2658   2.0-2.0   (+0 -0 =4 )  100.0  -115
 - Phalanx XXV                        2614   7.0-3.0   (+4 -0 =6 )  100.0   -47


Created in 2005-2013 by CCRL team
Last games added on February 17, 2018